Home / 20,286.34-30,432.07-6,961.93

Finding the Fourth Proportional to 20,286.34, 30,432.07 and 6,961.93

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Solution

The fourth proportional to 20,286.34, 30,432.07 and 6,961.93 is: 10,443.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,286.34 : 30,432.07 = 6,961.93 : x
  2. Step 2: Convert to fraction form
    20,286.34/30,432.07 = 6,961.93/x
  3. Step 3: Cross multiply
    20,286.34x = 30,432.07 × 6,961.93
  4. Step 4: Simplify right side
    20,286.34x = 211,865,754.13
  5. Step 5: Solve for x
    x = 211,865,754.13/20,286.34
  6. Step 6: Final answer
    x = 10,443.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.